X-Git-Url: https://git.distorted.org.uk/u/mdw/putty/blobdiff_plain/d8bd04b99564a2927a9600ff91cc8088e4d78232..21a22afe608ae2dbc4a663b7055e7524c54db0c1:/doc/using.but

diff --git a/doc/using.but b/doc/using.but
index 49b3fcda..81dc5529 100644
--- a/doc/using.but
+++ b/doc/using.but
@@ -181,6 +181,14 @@ In an SSH connection, the following special commands are available:
 Should have no effect.
 }
 
+\b \I{Repeat key exchange, SSH special command}Repeat key exchange
+
+\lcont{
+Only available in SSH-2. Forces a repeat key exchange immediately (and
+resets associated timers and counters). For more information about
+repeat key exchanges, see \k{config-ssh-kex-rekey}.
+}
+
 \b \I{Break, SSH special command}Break
 
 \lcont{
@@ -310,7 +318,7 @@ up on your local machine without sending any X network traffic in
 the clear.
 
 In order to use this feature, you will need an X display server for
-your Windows machine, such as X-Win32 or Exceed. This will probably
+your Windows machine, such as Cygwin/X, X-Win32, or Exceed. This will probably
 install itself as display number 0 on your local machine; if it
 doesn't, the manual for the \i{X server} should tell you what it
 does do.
@@ -746,6 +754,16 @@ These options are equivalent to selecting your preferred SSH
 protocol version as \q{1 only} or \q{2 only} in the SSH panel of the
 PuTTY configuration box (see \k{config-ssh-prot}).
 
+\S2{using-cmdline-ipversion} \i\c{-4} and \i\c{-6}: specify an
+\i{Internet protocol version}
+
+The \c{-4} and \c{-6} options force PuTTY to use the older Internet
+protocol \i{IPv4} or the newer \i{IPv6}.
+
+These options are equivalent to selecting your preferred Internet
+protocol version as \q{IPv4} or \q{IPv6} in the Connection panel of
+the PuTTY configuration box (see \k{config-address-family}).
+
 \S2{using-cmdline-identity} \i\c{-i}: specify an SSH \i{private key}
 
 The \c{-i} option allows you to specify the name of a private key